geÂ·oÂ·therÂ·mal. Relating to the internal heat of the Earth. The water of hot springs and geysers is heated by geothermal sources. â¦ Power that is generated using the Earth's internal heat is called geothermal energy.eothermal. adj. 1. (Geological Science) of or relating to the heat in the interior of the earth. (ËdÊi oÊËÎ¸Ér mÉl). adj.
Coloradoâs Scenic Million Dollar Highway: Silverton to Ouray. The scenic drive on Coloradoâs Million Dollar Highway (U.S. Route 550), from Silverton to Ouray, just might be the most eye-popping, awe-inspiring drive we have ever taken.
Extraterrestrial Highway (near Area 51) Location: The Extraterrestrial Highway is a 92-mile portion of State Route 375, which runs between Hiko and Warm Springs. Located in Rachel, a small city 150 miles north from the Las Vegas Strip, you'll learn all about Area 51 and get breathtaking views of the Southwest desert.